package demo1;

import java.util.PriorityQueue;

public class Test {
    public static void main(String[] args) {
        PriorityQueue<Integer> priorityQueue = new PriorityQueue<>();
        priorityQueue.offer(80);
        priorityQueue.offer(60);
        priorityQueue.offer(30);
        System.out.println("============");
    }
}
